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800xA Hardware

CPUs / Features	PM851	PM856	PM860	PM861A	PM864A	PM865
Processor Unit	PM851K01 incl: 1 PM851 CPU and required optional items	PM856K01 incl: 1 PM856 CPU and required optional items	PM860K01 incl: 1 PM860 CPU and required optional items	PM861AK01 incl: 1 PM861A CPU and required optional items PM861AK02 incl: 2 PM861A CPUs and required optional items	PM864AK01 incl: 1 PM864A CPU and required optional items PM864AK02 incl: 2 PM864A CPUs and required optional items	PM865AK01 incl: 1 PM865K01 CPU and required optional items PM865AK02 incl: 2 PM865K02 CPUs and required optional items

High Integrity Controller	No	No	No	No	No	Yes

Clock frequency	24 MHz	24 MHz	48 MHz	48 MHz	96 MHz	96 MHz

Memory (RAM)	8 Mb	8 Mb	8 Mb	16 Mb	32 Mb	32 Mb

CPU redundancy support	No	No	No	Yes	Yes	Yes

Switch over time in red. conf.	-	-	-	max 10 ms	max 10 ms	max 10 ms

Ethernet channels	1	2	2	2	2	2

Performance, 1000 boolean operations (a:=b and c)	0.46 ms	0.46 ms	0.23 ms	0.23 ms	0.15 ms	0.15 ms

Comm. modules on CEX bus	1	12	12	12	12	12

I/O clusters on ModuleBus (local I/O)	1 el. + 1 opt.	1 el. + 7 opt.	1 el. + 7 opt.	1 el. + 7 opt.	1 el. + 7 opt.	1 el. + 7 opt.

I/O capacity on ModuleBus (local I/O) (Non redundant confi guration only)	max 24 I/O modules	max 96 I/O modules	max 96 I/O modules	max 96 I/O modules	max 96 I/O modules	Limited, see user manual for details

Supported Communication modules	Profi bus	Foundation Fieldbus	RS-232 C	MB300	INSUM	Drivebus	S100 I/O interface	Genius TRIO I/O	Satt I/O
Module	CI854A	CI860	CI853	CI855	CI857	CI858	CI856	CI862	CI865

Protocol	DP-V1 (PA via Linking Device)	HSE (H1 via Linking Device)	Modbus master, Comli master/slave, Siemens master, User defi ned protocols	MB300	IEEE 802.3	ABB’s Drivebus	ABB’s S100 I/O	Genius	ABB´s Satt I/O

Master or slave	Master	Master	Master/slave	Master/slave	Master	Master	Master	Master	Master

Number of channels	1	1	2	2	1	1 main, 2 aux	1	1	1

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